The 460 has a 35w power consumption.
http://www.notebookcheck.net/AMD-Radeon-Pro-460.181783.0.html
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The 460 Pro should be somewhere in between a 960m and a 965m. For the 960m....
"Many games of 2014/2015 can be played fluently in FullHD resolution and high detail settings. However, very demanding games such as Assassin's Creed Unity will require lower resolutions and/or details."
So games like WoW you can probably turn the settings up, but GoW4 most likely not.
notebookcheck.net